<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<table border="1">
    <caption>商品列表</caption>
    <tr>
        <th>商品标题</th>
        <th>商品价格</th>
        <th>商品销量</th>
    </tr>
</table>
<script>

    //实例化对象  空对象
    let p1 = {};
    //动态给实例化完成的对象添加属性和方法
    p1.name = "张三";
    p1.age = 20;
    p1.run = function () {
        console.log(this.name+":"+this.age);
    }
    //调用对象的方法
    p1.run();
    //实例化自带属性和方法的对象
    let p2 = {
        name:"李四",
        age:18,
        run:function () {
            console.log(this.name+":"+this.age);
        }
    }
    p2.run();
    //通过数组装对象的方式封装 列表数据
    let arr = [{title:"小米手机",price:4000,saleCount:200},
        {title:"李宁篮球鞋",price:500,saleCount:1200},
        {title:"统一方便吗",price:5,saleCount:300}];
    //遍历数组 把数据展示到页面中
    for (let product of arr) {
        //创建行
        let tr = document.createElement("tr");
        let titleTd = document.createElement("td");
        let priceTd = document.createElement("td");
        let saleCountTd = document.createElement("td");
        titleTd.innerText = product.title;
        priceTd.innerText = product.price;
        saleCountTd.innerText = product.saleCount;
        //把3个td装进tr
        tr.append(titleTd,priceTd,saleCountTd);
        //把tr装进table
        let table = document.querySelector("table");
        table.append(tr);
    }





</script>
</body>
</html>